Tru-Flate design coupler plug. Short plug pilot, with wide metal section between the ball groove and the pilot. Thick sealing surface for longer seal life, 10 pieces in box. Design: Tru-Flate Thread Size: 1/4" MNPT Material: Steel Pressure Rating: Air Rating: For Use With: 13-100 Series Part Numbers WARNING: Handling this product can expose you to Lead a chemical known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to - www.P65Warnings.ca.gov Wash hands after handling. - Nickel (Metallic)